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Effect of radiographic magnification on image contrast of blood vessels

Effect of radiographic magnification on image contrast of blood vessels

Ajr. American Journal of Roentgenology 134(1): 159-192

Blood vessel phantoms 0.5--4 mm in diameter were radiographed with a 0.1 mm x-ray tube with and without scattering medium. The contrast of the blood vessel images was determined by densitometry. Without scattering medium, magnification did not increase the image contrast for 1 mm or larger vessels. With scattering medium, contrast improved significantly due to the reduction of scattered radiation by the air gap between object and film.

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Accession: 005265975

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PMID: 6766009

DOI: 10.2214/ajr.134.1.159

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